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9993 zil writes can get delayed in zio pipeline

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illumos/illumos-gate@2258ad0b75

Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Brad Lewis <brad.lewis@delphix.com>
Reviewed by: Matt Ahrens <matt@delphix.com>
Approved by: Dan McDonald <danmcd@joyent.com>
Author:     George Wilson <george.wilson@delphix.com>
This commit is contained in:
Alexander Motin 2019-06-03 19:24:40 +00:00
parent 84df75c732
commit 5f8c7a6af3
1 changed files with 2 additions and 1 deletions
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3
uts/common/fs/zfs/zio.c
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@ -1497,7 +1497,8 @@ zio_taskq_dispatch(zio_t *zio, zio_taskq_type_t q, boolean_t cutinline)
* If this is a high priority I/O, then use the high priority taskq if * If this is a high priority I/O, then use the high priority taskq if
* available. * available.
*/ */
if (zio->io_priority == ZIO_PRIORITY_NOW && if ((zio->io_priority == ZIO_PRIORITY_NOW ||
zio->io_priority == ZIO_PRIORITY_SYNC_WRITE) &&
spa->spa_zio_taskq[t][q + 1].stqs_count != 0) spa->spa_zio_taskq[t][q + 1].stqs_count != 0)
q++; q++;